Ability to group roles (to make assigning them easier for mods)

If we had the ability to group roles, it would benefit servers and especially moderators in several ways:

• It would make assigning roles much easier, if the system was a series of collapsible dropdown menus we could make to make navigating to a specific role easier in servers that require many roles. The current system is especially difficult on mobile.
• It could be used for pinging purposes, say for example there was a @spectator role and then there was @red team, @yellow team, @blue team, @green team roles, rather than also having to assign every contestant an @contestant role individually or having to ping the teams individually each time, it would be useful if all the team roles were under a @contestant role so that you can ping all teams at the same time, without having to assign an additional role to each contestant.